1. Freediving Depth Data Field - Connect IQ App Development Discussion - Connect IQ - Garmin Forums
   URL: https://forums.garmin.com/developer/connect-iq/f/discussion/4028/freediving-depth-data-field
   Freediving Depth Data Field - Connect IQ App Development Discussion - Connect IQ - Garmin Forums

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# Freediving Depth Data Field

Recently I noticed that the very useful freediving data field called "Depth" has disappeared from the Connect IQ Store. I have no Idea why and I also don't remember the author of this data field. Because I need this data field and because I want to be able to record the data, I now try to code it myself. Only problem is that I currently run into some difficulties: -There seems to be no way to get the pressure reading from the barometer into a data field, because it would use the Sensor module which is not allowed to be used for a data field, only for an app (Gives error when put in manifest file). -And taken that it could be done anyhow, it most likely could not be done with Info.pressure because according to the API documentation this would return a pressure value corrected with the current altitude, whereas I would need the raw value to calculate the diving depth. So, my big question is: How did the author of this freediving depth data field achieve this?? Can anybody give me a hint with this? PS: Yes, I know that there exists a diving computer app at www.diveiq.com. But it’s quite expensive and not ideal for freediving. What I really want is just a data field to show me the current depth, which creates a FIT-File to show the depth as a graph in Garmin Connect.

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- Don't confuse the water rating (how deep you can take the watch) with what pressures you can read with the watch. If I recall, some devices max out pressure readings at a depth that would work for…

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You may want to check this sticky thread, as this is why the DF is now gone. https://forums.garmin.com/showthread.php?362498-Diving-related-Apps

> You may want to check this sticky thread, as this is why the DF is now gone. https://forums.garmin.com/showthread.php?362498-Diving-related-Apps

First thanks a lot for the quick answer. I was already expecting something like this. Honestly I think that’s a really bad decision made by Garmin here. Isn’t it each user’s own responsibility whether he wants to risk damaging his watch or not? I mean he bought it didn’t he? Ok. I see the point, that Garmin does not want to get sued, by users who “accidentally” destroyed their watch while using a diving app, but is banning all the diving apps really the way to go? Wouldn’t it be enough to make it mandatory to display a big fat red warning message when installing diving apps, which the user has to confirm? Then it would be 100% his own fault, if he broke his watch. This being said, could anybody help me with my coding related questions?

You might be able to use the altitude value provided inside the Activity.Info. If you go to 5m below the surface, the altimeter will show A. At 10m, it might show B... If you take measurements at various depths, you can establish a function that takes the altitude returned by the device and converts it to a depth. It would take a lot of testing to verify the correctness, but it seems that it might be a reasonable approach.Of course you could always try go contact the author of that original data field, and find out how he did it. Given that his data field was removed from the app store, he's probably going to be willing to share the source code with those that are interested.Travis

Depends on which watch you're developing for. For fenix 5 you can read raw pressure. I built exactly this data field today. Pop me a pm if you're interested. Cheers

Hi Niall,

I'm interested in this data field.

Can you help me, please? Thanks

Hi, have you had any luck?

Hi Marphy43

I know that it is now 5 years since you asked this question.

But I accidently saw your question just now. I were the author of the Depth gauge and the Max Depth gauge datafields that were on Connect IQ for a while.

The data fields were intended for use for fun when freediving etc.

I originally made it for Fenix3 and it were compatible with a few more devices. As I recall it, they were active for about a year and there were more than 3000 downloads and a lot of great reviews and no complaints.

I were working on other datafields for freediving like eg. surface time, time of last dive etc.

But, then one day I received a email from Garmin, stating that the Fenix3 and other compatible devices were never supposed to be used as a watch for diving and that the datafields were now removed from connect IQ.

It even stopped working on my own watch :-)

So yeah I spend time and effort on something that were loved and used by a lot of users, but it ended up being banned.

I used data from the altimeter to measure the depth. I wrote in an old thread how I did it here: https://forums.garmin.com/developer/connect-iq/f/app-ideas/974/freediving-depth-meter-surf-time

That's really sad, to hear.I was Hopping to Cross load this feature to the Instinct 2.0...It shows just how much Garmin tries too squeeze every Cent of its End User which Software Upgradeable Features that could and should be Free on a +400€ Watch...Want a Diving Feature? Nah, just buy another Watch for 800€...Want VO2Max? We could Software add it but nah, New Model for additional 400€while Dropping the Worth of your 2-Year-Old Watch by 60% without warning...I would say its about Time to Create an Open Source Rugged Smartwatch alternative that's Freely Configurable to your Needs.Will be Interesting to see, how long till this comment gets Taken down...Sorry for the Rant

You want to check out the App Approval Exceptions: https://forums.garmin.com/developer/connect-iq/w/wiki/10/app-approval-exceptions

Extreme Sports

Apps designed for scuba diving, free diving, skydiving, base-jumping, and extreme flight sports will not be listed on the app store for the following reasons:

- The diving features available on the Descent Mk1 are the only Garmin features intended for underwater diving use.
- The altimeter/barometer feature available in some Garmin devices is intended to be used for general altitude reference only, and is not intended to be used for extreme sports such as skydiving, base-jumping or other activities that require the use of equipment that is designed and intended for such use. The Jumpmaster feature on the Garmin tactix Bravo watch is intended to be used for skydiving activities by experienced skydivers. This is the only Garmin feature that is intended for use while skydiving.

Thanks for your Answer,About "[...] or other activities that require the use of equipment that is designed and intended for such use."the Instinct Tactic Series has also an Base Jumping Activity.And I doubt that the Barometric Sensor differs across the Series.The Instinct is Rated for 10 Bar, so technically a depth of 100m.Normal Scuba Diving goes to ~30m, 50-60m at max. so the Specification would suffice.For Apnoe it's Technically Possible, but i doubt that even a dwindling Minority can surpass a depth of 50 m.I know that for Scuba Diving Watches of 20 Bar are recommended as minimum Requirement.So technically this is right. But you could Inform the User about that and let him Accept an Agreement, like with the aviation-specific apps if thats a Problem.Like "Not Intended for Usage as Reference, only for Data Recording additionally the Watch is not Intended to be Used for this Use Case" Your Answer got my Hope up, that it might be Possible to get that App from other Sources, if you know what you are doing?Because it Technically says "will not be listed" not that its not allowed...Assumed Cross Loading is Possible.Could you Point me in such Direction?Or could you @Miguel_Hermann post it even on a Github Repo, so not everyone has to Recode it himself?

2. Pressure and Depth Measurements on Gamin Devices - Connect IQ App Development Discussion - Connect IQ - Garmin Forums
   URL: https://forums.garmin.com/developer/connect-iq/f/discussion/6354/pressure-and-depth-measurements-on-gamin-devices
   Pressure and Depth Measurements on Gamin Devices - Connect IQ App Development Discussion - Connect IQ - Garmin Forums

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# Pressure and Depth Measurements on Gamin Devices

Here is a video and some insights on my experience in working with pressure and depth measurements on Garmin devices. My diving apps are available at www.diveiq.com https://www.youtube.com/watch?v=rt-yz88q4LE&t=41s This video shows depth being computed using three different methods for obtaining pressure on Garmin devices.1) Raw ambient pressure: As measured by the pressure sensor.2) Ambient pressure: A smoothed, two-stage filtered pressure provided by Garmin which reduces noise and instantaneous variation.3) Altitude pressure: Pressure derived from the altitude .Many Garmin watches have a pressure sensor that Garmin uses internally to compute altitude. This sensor's data was only available internally to Garmin software and not made available to third party developers. Third party apps such as DiveIQ's Dive Computer and Freedive apps were forced to convert altitude back to pressure. This reverse conversion works pretty accurately but introduces some lag (delay) because it takes a few seconds for pressure changes to reflect on the altitude. Applications deriving pressure from altitude also need to be capable of coping with altitude decalibration because the altitude measurement provided by Garmin does not solely depend on pressure. The altitude also depends on multiple user settings that Garmin uses to determine if changes in pressure are due to changes in weather or changes in altitude. GPS measurements and manual calibrations are also taken into account. Garmin now provides two pressure measurements. A "raw ambient pressure" value taken directly from the sensor and an "ambient pressure" value smoothed by a two-stage filter that reduces noise and instantaneous variation. This video shows shows the response time and accuracy when using each pressure measurement method to compute depth in meters.

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3. freediving app from descent to fenix 5 - fēnix 5 Series - Outdoor Recreation Archive - Garmin Forums
   URL: https://forums.garmin.com/outdoor-recreation/outdoor-recreation-archive/f/fenix-5-series/244188/freediving-app-from-descent-to-fenix-5
   freediving app from descent to fenix 5 - fēnix 5 Series - Outdoor Recreation Archive - Garmin Forums

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# freediving app from descent to fenix 5

Hello,

Is it a way of installing the freediving app installed in the garmin descent on the fenix 5x plus ?

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- It's part of the firmware and there's no way to install it. You won't find any CIQ apps for it, and there's also differences in the HW as the fenix 5x isn't set up for diving (the pressure sensor…

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go to Connect IQ and check compatible devices for that app, if 5x plus is not listed there, then I think the only way would be communication with developer.

I think the apnea app is implanted by default in the Descent. It is not available on the Connect IQ website. My question was if there was a way of extracting it and install it on the Fenix.

It's part of the firmware and there's no way to install it. You won't find any CIQ apps for it, and there's also differences in the HW as the fenix 5x isn't set up for diving (the pressure sensor only goes to 20 feet, I believe.

Ok thanks for the info. My next question would be… Is there anyway I could install the firmware of the Descent on the Fenix 5X?

4. Barometric pressure data useless - Connect IQ App Development Discussion - Connect IQ - Garmin Forums
   URL: https://forums.garmin.com/developer/connect-iq/f/discussion/5343/barometric-pressure-data-useless
   Barometric pressure data useless - Connect IQ App Development Discussion - Connect IQ - Garmin Forums

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# Barometric pressure data useless

Hi all, I'm playing around a bit with some sensor data on my Fenix 5. However, it seems to me that the sensor data the pressure sensor is returning is just not really helpful. According to the API it "returns barometric pressure calibrated to sea level" but as a user I'm way more interested in the absolute barometric pressure the sensor is currently facing. This is also the quantity the sensor is actually able to measure but somehow I don't know (yet!?) how to access the pure measurement data. Why would Garmin measure something just to scramble it and then provide only the 'scrambled' numbers to the developers instead of the real measurement values. Can anyone tell me how I can access the absolute barometric pressure? That would be really helpful! Thanks!

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- Wrong data Calibrating the altimeter does not help me since I'm not interested in the pressure calibrated to sea level. This number is absolute useless for me. I need the absolute barometric pressure…

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Measurements are way off... Unfortunatelly what I observed is that barometric preassure presented on the watch is way off from measurement of my weather station (which is correct I'm sure). Station says 1021hPa, while watch: 1065hPa. Hard to say how can you relay on that measurement...

Make sure you calibrate the altimeter. That's used to convert the ambient reading to sea level, and what you see is the sea level pressure. I see reading on the watch that are very close to what my weather station says if it's calibrated.

Wrong data Calibrating the altimeter does not help me since I'm not interested in the pressure calibrated to sea level. This number is absolute useless for me. I need the absolute barometric pressure which is the actual atmospheric pressure present at a certain altitude. If the fenix 5 has a pressure sensor that is also what it will be measuring but I don't know how to get this data. Is there a way to access the "real" absolute pressure data?

Sorry, but I do not think that is exposed to the CIQ interface. Therefore I do not believe there is a way to obtain the true pressure from a CIQ app. This is only available internally and not to CIQ.

https://apps.garmin.com/en-GB/apps/1e896cb8-87ac-4b7a-869f-b1c053fd917d It is possible, but currently only available for Fenix 3 and derivates.

When the f5/5x/fs started shipping, and up until the 3.90 FW on the va-hr, SensorHistory.getPressureHistory() returned the raw pressure, and what I had to do what use that with elevation to convert to MSL pressure, as MSL is what people wanted to see. It's how you can watch for weather changes, etc. If you have the MSL pressure, you could do the inverse with elevation, and come close to getting the "raw" data back.

In Russia you can hear on radio and see in internet only Ambient pressure value. I found almost useless Barometric pressure native widget, only to estimate trend and get alert on fast pressure changes. If we take Barometric pressure, then convert it to Ambient (raw) pressure, we can get error because of temperature and height (P = Po*exp(- μgh/RT) ), unit just estimates height MSL using internal algorithms. Double conversion looks not good. Ambient pressure can be visible only when you start activity. I vote for availability Ambient pressure in CIQ.

> If we take Barometric pressure, then convert it to Ambient (raw) pressure, we can get error because of temperature and height (P = Po*exp(- μgh/RT) ), unit just estimates height MSL using internal algorithms. Double conversion looks not good. Ambient pressure can be visible only when you start activity. I vote for availability Ambient pressure in CIQ.

I agree that converting it forth and back is not what you want to do. But what do you mean with "can be visible only when you start activity". I don't think that makes a difference.

There is a built in data field which can be configured, but is only available during an activity. It is not accessible any other way.

Bad thing that even pressure reported by CIQ does not match the value in the data fields. Data field values match the internal service test menu however. In this menu I can see pressure in mb.

5. Ambient pressure and pressure history don't match - Connect IQ App Development Discussion - Connect IQ - Garmin Forums
   URL: https://forums.garmin.com/developer/connect-iq/f/discussion/244746/ambient-pressure-and-pressure-history-don-t-match
   Ambient pressure and pressure history don't match - Connect IQ App Development Discussion - Connect IQ - Garmin Forums

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# Ambient pressure and pressure history don't match

Hey all, does anyone know what pressure the pressure history is storing? I have tested with putting both on screen and my ambient pressure is always higher than my max pressure history (over last 30 mins) so what is this doing?

If I look at my watch now it shows PH getMax to be 101833 and my AP now to be 102996. The PH never been above 101... if I put it in water (20cm) the AP goes up to 104888 which shows AP sensor is moving but PH never changes or goes near it.

Any insights would be great as I am trying to see historical pressure history to make a "guess" on no fly time for diving.

Many thanks,

Ben

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I'm not sure how SH.getPressureHistory deals with being under water. If I recall it's MSL pressure. Also, how often it's saved likely varies by device, where you can find the interval by comparing "when" in two adjacent samples.

And getting Sensor.Info.pressure can vary from what you see in Activity.Info.ambientPressure/Activity.Info.rawAmbientPressure

Ahh fiddle sticks... MSL pressure is of no use to me and that explains why it doesn't seem to change in the history even when submerged in water for 10 minutes. Must also be adjusting for depth of water (as this is the MK2 so has a depth sensor but cannot access it through CIQ I don't think?)

Basically, doesn't look like I can do what I want so will have to use the standard Garmin faces when diving and custom one when not :(

Thanks for the info Jim, appreciate it!

Actually stupid question, could I not just get raw and store date and time in a variable and do it that way..? The code doesn't reset each refresh does it? That would work I think :)

Actually that won't work as the WF has to be active to measure anything which it won't during a dive.

Also, Jim, does the memory/variables reset when you navigate away from the WF and back to it do you know? Thanks again.

Yes, you can build your own list of data and time. You might be able to do it in the main app, but you can also use a background service to take a reading every X minutes. In either case, you'll want to store the data using Application.Storage. You have to handle missing data.

I just saw your new post, but with a background process you can probably run the background while doing a dive.

Interesting, will look into that. Don't want to lag or run battery down for this so will see what performance is like on it :)

Thanks again for the info! :)

Here's a widget I did that does a graph of temperature using a background process. In general, the way it works is I save up to 96 samples with a time stamp. For a 4hr graph, the background runs every 4 minutes, but for a 48hr graph, every 30 minutes. Try it on your next dive. For missing readings, you'll see a pink mark under the graph.

The background in this is actually pretty minor, with the heavy lifting done in the widget itself.

Great, thanks. Will have a look at running background processes and see if that can work. Out of curiosity, why wouldn't you use temperature history for this or was it more of an experiment to see if it worked? (also this is a default widget isn't it or did you make it before that became standard?)

Thanks again Jim, you seem to be the fountain of knowledge on these forums because the Garmin library docs are terrible! :) hehe

SH.getTemperatureHistory only provides about 4hrs of data, and I wanted to allow for a couple days of data, so I did my own caching. And this doesn't require the widget itself to be run on a regular basis.

Ah of course, mine does say last 4 hours to be fair. Cool, will give this a go :)

Found a blog post you referenced 3 years ago but it is broken :( I cannot find any examples but is it a case of using a registerForTemporalEvent and setting it every say 10 minutes and then adding data to the Application.Storage? That how this would work? Sorry for all the Q's but I work better off examples and cannot find any I understand and this monkey C is pretty new to me

Thanks again

6. Negative Depth? - Fenix 5X - fēnix 5 Series - Outdoor Recreation Archive - Garmin Forums
   URL: https://forums.garmin.com/outdoor-recreation/outdoor-recreation-archive/f/fenix-5-series/140399/negative-depth---fenix-5x
   Negative Depth? - Fenix 5X - fēnix 5 Series - Outdoor Recreation Archive - Garmin Forums

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# Negative Depth? - Fenix 5X

I’m curious if anyone around the forums here have experience with this. Can the 5X give you a negative depth reading? Specifically I’m wanting to know if the device can show depth while snorkeling or free diving.I realize it’s not a dive watch, but since it has the altimeter it sparked my curiousity.

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Every second day I am walking at about 5m below sea level. The altitude on this watch is another of the many bugged and never fixed aspects. So from this experience pretty sure it should give you negative depth readings as I went for a ride at -28m about 2 weeks ago. I am damn talented....

I noticed yesterday when heading to pick up the kids from school that my altimeter was showing -11meters.. I normally have it set to Baramoter if I'm home as my elevation doesn't change much through the day. I had left it on Auto following a bike ride and we had a storm coming in which I guess might have confused it. Wish you could set it to auto update altitude by GPS every hour or so..

Pitz and Kilt, the OP is asking about the watch's ability to record water depths.Your replies are about an entirely different issue: Altitudes (in air) below sea level.To Pitz, I further recommend that you read some of the many threads on altitude measurements. If you think that the watch is malfunctioning because it shows a negative altitude, you simply don't understand how a barometric altimeter works.

C1rclez, there was once an CIQ data field (or app?) for diving that someone had written but I believe it was pulled by Garmin as the watch is not considered a dive watch and is not supposed to be used as one. Possible the app/data field is available "off-line" - not sure. You could probably do up your own with one of the apps that allow you to customize calculations such as AppBuilder. This is needed as you must convert the water pressure to a distance (not the same as in the air obviously).AllanOlesen67 +1. Not to take anything away from those that are having real problems with the altimeter/barometer/temp combo, many have no idea how it works and the complexity involved (especially staying accurate over a given period of time without calibration). I'm not saying Garmin does it the best, just that any abc watch will need to be calibrated on a regular basis as they drift. Even counting on GPS is not great given the lack of vertical accuracy (generally 1.5 to 2 x less than horizontal) - easy to be off by many meters even with a good fix.

Razmichael, I will look into the CIQ face or app. I have technical background and could probably write my own in the future. I was just curious about the stock ABC widget mostly. The reason I asked is because Suunto’s Core series can do negative depth (it’s a non gps enabled ABC watch). I was hoping my Fenix has similar ability.

> Pitz and Kilt, the OP is asking about the watch's ability to record water depths.Your replies are about an entirely different issue: Altitudes (in air) below sea level.To Pitz, I further recommend that you read some of the many threads on altitude measurements. If you think that the watch is malfunctioning because it shows a negative altitude, you simply don't understand how a barometric altimeter works.

I know as a baro/gps altimeter works. I'm also curious about depth readings! DESCENT MK1 is is probably equipped with the same hardware of F5X! What do you think about?

I wonder if there is cut-off for the ambient pressure reading. If there is no cut-off, a workaround could be using the built-in ambient pressure data field and do some simple math in the head while diving.Each 100 millibar is equal to one meter, and the surface pressure will be around 1000 millibar (at least when diving in the ocean), so 1100 millibar = 1 meter, 1200 millibar = 2 meter, 1300 millibar = 3 meter, etc.

> Pitz and Kilt, the OP is asking about the watch's ability to record water depths.Your replies are about an entirely different issue: Altitudes (in air) below sea level.To Pitz, I further recommend that you read some of the many threads on altitude measurements. If you think that the watch is malfunctioning because it shows a negative altitude, you simply don't understand how a barometric altimeter works.

Thanks for the obvious... I can read and am aware it's in relation to diving/ snorkeling. The title of the thread is "Negative Depth?" and so I was pointing out that the watch does record Negative Depth IE I was answering the question asked!... It matters not a jot if your above water or below water- it's a pressure sensor! trust me, I used to work in a Hyperbaric Chamber treating divers!If your diving at high altitude (lakes etc) You need to calibrate your dive computers to that altitude before use.. so the two are intrinsically related.. as I said, the sensor cannot tell if its air, water or concrete pushing on it

> Thanks for the obvious... I can read and am aware it's in relation to diving/ snorkeling. The title of the thread is "Negative Depth?" and so I was pointing out that the watch does record Negative Depth IE I was answering the question asked!... It matters not a jot if your above water or below water- it's a pressure sensor! trust me, I used to work in a Hyperbaric Chamber treating divers!

If you trained divers, I certainly hope that you know that the relation between pressure and altitude depth is entirely different in air and in water.In air, 1 millibar of pressure change is equal to approx. 8 meter of altitude change (when you are near sea level).In water, 1 millibar of pressure change is equal to approx. 1 cm of depth change.That is a difference by a factor of 800.In short: The fact that a watch can show negative altitude in air is absolutely no indication that it will be able to show true negative depth in water. If the watch just continues its air altitude calculation when it gets submerged to a depth of 1 meter, it will show an altitude of approx. -800 meter, not -1 meter.

AllanOlesen67Apologies for the tone of my post. Happy to admit my errors and you are indeed correct, I knew it wasn't exactly the same although I had not appreciated quite the difference between the 2- I only nursed divers with decompression illness, not trained them or manage the chamber operations. Always happy to be corrected and learn from others. I should in my "post-night shift state"- have mentioned the relationship was not the same and for obvious reasons, the 5X should not be used in place of a dedicated dive computer- It was instead a rather clumsy way of highlighting the watch did display a negative value.Apologies!KP

7. (NEW) Free Dive Computer App for Garmin Fenix with unique safety and data features | DeeperBlue.com Forums - Freediving & Spearfishing Community
   URL: https://forums.deeperblue.com/threads/new-free-dive-computer-app-for-garmin-fenix-with-unique-safety-and-data-features.128704/
   (NEW) Free Dive Computer App for Garmin Fenix with unique safety and data features | DeeperBlue.com Forums - Freediving & Spearfishing Community

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# (NEW) Free Dive Computer App for Garmin Fenix with unique safety and data features

- Thread starter kociubin
- Start date Monday at 5:59 PM

#### kociubin

##### Active Member

Aug 19, 2019

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I created a new Dive Computer app for Fenix watches. It took many months of work and a lot of testing so please be gentle. Please consider giving it a try or at least provide feedback. The app incorporates some features that should make freediving and spearfishing safer. This is the main reason for releasing the app. It's a full featured Dive Computer app that has some unique features for freedivers not currently available anywhere else: -Configurable, clear to read, Rest Interval algorithms: AIDA, Molchanovs, Taravana. The watch shows green if recovered and red if not. -5 Configurable Depth Alarms (Descend/Ascend) -Advanced on watch stats viewable during a dive session (Bottom time, Dive Profile) If you already have a Fenix 5, 5x, 5s or plus, please give it a shot. It's still in beta. It's free. There is a mobile app in the works. The app has a simulator built in so you can try it without water. It officially supports Fenix 5 watches. NOTE: It will also work on Descent MK2 and MK3 but those are still being tested and might not show full depth. Fenix 5 will work down to 40m. You can get the beta software here: LINK

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8. ”Depth” Unit Option - fēnix 5 Series - Outdoor Recreation Archive - Garmin Forums
   URL: https://forums.garmin.com/outdoor-recreation/outdoor-recreation-archive/f/fenix-5-series/154317/depth-unit-option
   ”Depth” Unit Option - fēnix 5 Series - Outdoor Recreation Archive - Garmin Forums

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# ”Depth” Unit Option

Hello, I had a quick question. Under Settings/System//Units you have a “Depth” option (feet or meters). Does anyone know why this is an option when it doesn’t have any dive related activities on the watch?

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Link for 2 app. for diving: https://www.apnea.me/dyn One for horizontal freediving (Apnea DYN) is free, and for vertical freediving (Apnea CWT) costs 12 euro.I installed Apnea DYN, and it works very well on my Fenix 5x ...

I wasn’t aware of that app, thanks. But what is the purpose the the “Depth” sensor, as I doubt Garmin would include the option for 3rd Party Diving Apps?

There’s also the Dive IQ (https://www.diveiq.com/) activities apps. As for the reasoning, from what I understand, the hardware on the 5x is almost identical to the Descent. So there’s probably quite a bit of code in common between them.

9. Pressure sensor not working below 3 m of water by design. Meanwhile tha Apple Watch Ultra does 40m with dedicated dive app... - fēnix 6 Series - Wearables - Garmin Forums
   URL: https://forums.garmin.com/outdoor-recreation/outdoor-recreation/f/fenix-6-series/308135/pressure-sensor-not-working-below-3-m-of-water-by-design-meanwhile-tha-apple-watch-ultra-does-40m-with-dedicated-dive-app
   Pressure sensor not working below 3 m of water by design. Meanwhile tha Apple Watch Ultra does 40m with dedicated dive app... - fēnix 6 Series - Wearables - Garmin Forums

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# Pressure sensor not working below 3 m of water by design. Meanwhile tha Apple Watch Ultra does 40m with dedicated dive app...

Hi

I was just wondering why Garmin has decided to kill the functionality of the pressure sensor, that could be used as a depth meter with appropriate software for recreational diving on Fenix 5. The readings were very accurate and reliable.

But since fenix 6 and 7, including Tactix series the pressure sensor cuts out at 3 m below surface? Why?

Meanwhile a toy Apple Watch Ultra does easily 40m depths with built in app (plus a ton of other apps,and wireless conectivity and rumored 60h battery life)

Why Garmin is destroying built in functionality? Not everyone will(or must decide) to buy Descent if he or she does only occasional recreational dives

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Reading your last sentence, it seems like you already know the answer. Main reason is most probably that they want us to buy one of the Descent watches if we want any diving features. Additionaly, it could be that the Fenix uses a different pressure sensor that is not tested or suitable for diving, and Garmin does not want to get held responsible for injuries that are caused from wrong readings.

Why Garmin is destroying built in functionality?

Fenix was never build for scuba diving :

10 ATM :

splashes, rain or snow, showering, swimming, diving into water, snorkeling, high-speed water sports

1st: the Apple Watch Ultra is not a toy...

2nd: Garmin always limits functionality of the hardware via software to differentiate their devices. The Vivoactive 4 has essentially the same sensors as the Fenix 6 but you don't get things like recovery time and training effect in Garmin connect with the Vivoactive, although the FIT file contains this data.

I have tested the DIVE IQ app on Fenix 5 and it was accurate within 0,1 m when compared to a "proper" dive computer. Good enouigh for me, especially as a backup device or an easy loggin system for dives in the Garmin enviroment. That's why I was dissapointed that after switching to Tactix Delta, suddenly I was not able to use the program anymore. I am not saying that it should replace proper dive computer , but for those tht go diving 2-3 times per year it is good enough. The "getting responsible" part is no problem- just use at your own risk

The first part of the definition: 10 ATM "Withstands pressures equivalent to a depth of 100 metres". I am not talking about operating buttons underwater or going to 100 m. Just 40 m. Recreational. Why rate the device for 100m and then kill it functionality at 3m? Especially when talknig about Tactix Delta- a rugged military watch...

Tha "toy" part was intentional , especially when you compare marketing claims for Garmin watches, especially the Tactix line-up. There are some things that make it to older watches, and Garmin should be applauded for it. However if something is intentionaly crippled, especially for apps not from garmin but Garmin store, thats another story...

The first part of the definition: 10 ATM "Withstands pressures equivalent to a depth of 100 metres".

I'm surprised that you, as a diver, don't recognize the definition of water resistance correctly. 100m does not mean that this watch is suitable for diving. Here is another source outside of Garmin:

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„

That’s why most brands have a consensus of what WR rating means. Rather than thinking WR rating as a precise measure of water depth it can go to, it is marketed as an indication of levels of water resistant capability, with a substantial safety margin. Most WR ratings on the market can be summarized as thus:

3 ATM/30M — Splash/rain resistant, Washing hands

5 ATM/50M — Shower/bath

10 ATM/100M — Recreational surfing, swimming, snorkeling, sailing and water sports

20 ATM/200M — Professional marine activity, serious surface water sports and skin diving“

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# How Waterproof is Garmin’s “Waterproof” [Updated 2017]

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„

- 10 ATM/bar/100m: This watch is waterproof and good for most watersports like swimming, sailing and snorkeling in shallow water. If you plan on jumping off cliffs and diving, don’t wear this watch.“

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——

If you want to go diving, buy a diving watch ;)

10. Apps or Software from new Garmin Decent Mk1? - fēnix 5 Series - Outdoor Recreation Archive - Garmin Forums
   URL: https://forums.garmin.com/outdoor-recreation/outdoor-recreation-archive/f/fenix-5-series/136475/apps-or-software-from-new-garmin-decent-mk1
   Apps or Software from new Garmin Decent Mk1? - fēnix 5 Series - Outdoor Recreation Archive - Garmin Forums

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# Apps or Software from new Garmin Decent Mk1?

I see that Garmin has a new dive watch version of the Fenix. Since our 5X is good to 100 meters, I wonder if we'll be able to install any of the dive apps? I do a lot of snorkeling and shallow water diving and it would be handy to have some of those features!

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From the details in Ray's hands on https://www.dcrainmaker.com/2017/10/...iving-gps.html I doubt it. The dive features seem hard coded (not CIQ) and rely on additional hardware (the depth gauge).

Yeah, the depth gauge is sort-of like the barometer but with a MUCH greater pressure rating (one atmosphere for every 33 feet of depth, to be precise.)This is a rather cool addition to the Fenix line; I'm more than a bit disappointed that it uses ZHL as the algo however, as while it's quite conservative it's also a very old algorithm -- there is much better available nowdays with better proved performance (in not bending you), especially for technical diving (and since the watch will do multiple gases, this would otherwise be quite useful.)I don't do much diving these days but it used to be quite a passion, and while the $999 price tag looks expensive for a fitness watch it is definitely NOT for a decent dive computer, ESPECIALLY one that does mixed gas. In fact, if you like the dive computer capabilities of this device you're basically getting a Fenix 5x for free with its purchase (in comparison to the other products on the market.)This in turn means Garmin potentially has a market-devastating device here that could literally put a number of competitors out of business. Just about the only thing it doesn't appear to do is fixed-pO2 (for those with rebreathers)

While I was using my F3 in 2016, there was a very interesting CIQ data field developed by a guy called Miguel, proposing a depth gauge, based on pressure recorded by barometer while diving.this was working quite well, at least for my usage (snorkeling).Garmin decided to kick out this kind of development for safety reasons ( and probably legal reasons also).

https://www.youtube.com/watch?v=X5n1CqozMiI&t=65s https://www.diveiq.com/

Really interesting !1) I did not know at all this app, which is provided thru a payment (2 versions from 15 to 20 USD)2) I did not know that it was possible to install an app directly with copy/paste3) it seems to do the job very wellbefore paying for this app, as I know Garmin terms & conditions does not permit such feature for safety & legal reasons (from an official statement in CIQ forum), how can we make sure Garmin will not disable software capabilities used by such SW ?

valentin.d Here is our official stance on diving-related apps: https://forums.garmin.com/forum/deve...ements/148653- With the release of the Descent Mk1, this position may change in the future, but as of today, Connect IQ has no API that provides access to any dive specific functionality available on the Descent (in fact, Connect IQ apps will not operate while in a diving activity). Since apps like Dive IQ use the barometer, it falls under the "not designed for this purpose" category. As stated in the linked thread, we don't prevent developers from using sensors in ways for which they were not designed, but we won't host these types of apps on our app store for safety reasons.

Thanks for this clarification and official message.I did not remember the last sentence about hability for devs to continue on their own out of Garmin store.So finally very good news as Dive IQ seems really efficient, at least for what I’m looking for (mainly snorkeling)

Note that according to Garmin's docs the Fenix 5X and other Fenix watches except the new MK1 aren't designed for diving in terms of water resistance. 100M means it's good for swimming, maybe a bit snorekeling but anything beyond that could damage the watch, so I understand why they keep diving apps, which could lead to damaging the watch, out of the store

I honestly don't think I would trust the (5X) watch for diving! Record me walking 182mph, skip a section on a ride, etc, annoying and sometimes amusing but it doesn't risk my life!